LAU Commercial Air Curtains
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| LAD MODEL - AIRFLOW AND SOUND PERFORMANCE DATA | |||||||
| Air Curtain Model | Recommended Curtain Opening Width | Nozzle Opening | Motor (HP) | Amp Draw Full Load (115/208/480) | Airflow (CFM) | Unit Wt. (lbs.) | Sound Power (dBA) |
| LAD-36 | 32" | 4" x36" | 1/2 | 5.1/2.5/0.8 | N/A | 1226 | 60 |
| LAD-42 | 38" | 4" x 42" | 1/2 | 5.1/2.5/0.8 | N/A | 1226 | 60 |
| LAD-48 | 44" | 4" x 48" | 1/2 | 5.1/2.5/0.8 | N/A | 1226 | 60 |
| LAD-64 | 60" | 4" x64" | (2) 1/2 | 10.2/5.0/1.6 | N/A | 2452 | 63 |
| LAD-78 | 74" | 4" x 78" | (2) 1/2 | 10.2/5.0/1.6 | N/A | 2452 | 63 |
| LAD-84 | 80" | 4" x 84" | (2) 1/2 | 10.2/5.0/1.6 | N/A | 2452 | 63 |
Sound test to ANSI S12.31.
Suggested Air Curtain Specifications - LAD & LHAD Series
Furnish and install at the locations shown on the plans or in accordance with the schedules, commercial air doors with electric heat that meet the following minimum requirements.
Air door cabinet shall be minimum 20 gauge (0.9) thick painted galvanized steel. Discharge grille shall have adjustable blades made of 6063T5 aluminum and shall extend the full length of the discharge opening. The discharge grille shall be securely fastened by 24 gauge (0.6) stainless steel clips. Adjustable inlet grille shall be single deflection extruded aluminum with clear anodize finish.
Cabinet finish shall be baked enamel with minimum 50% Kynar finish. Colors shall be one of 15 Lau standard colors or as specified by the customer.
(LHAD) Air doors shall be provided with a factory furnished and mounted NEMA 1 control box, electric heating elements and thermostat. The control box is mounted on the right hand [left optional] side facing the inlet grille and shall control on/off/auto operation of the motor/blower assembly. The heater elements shall consist of wired heating coils located in the discharge and shall include a protective screen. Lau electric heated air doors shall include a 24 vac heating thermostat with system and fan switches. Thermostat shall be remote mounted for customer flexibility.
Motor and blower base shall be manufactured with minimum 16 gauge (1.6) galvanized steel. Motor shall be (specifier select) 208V/1ph/60hz multiple speed (or) 240V/1ph/60hz multiple speed (or) 480V/3ph/60hz single speed. The blower shall include forward curve (FC) double wide double inlet wheel (DWDI).
Optional door switches shall be (specifier select) plunger operated (or) roller operated.
Optional air filters shall be reusable and cleanable aluminum wire mesh.
Air doors shall be:
- UL listed – UL 2021 (LHAD)
- UL listed – UL 507 (LAD)
- Canadian listed – CSA C22.2
- Airflow tested in accordance with AMCA Standard 220
- Sound tested in accordance with ANSI S12.51
A (5) five year warranty on the entire air door assembly.
Air Curtains with parts-only or less than 5 year warranty shall not be acceptable.
When submitting Air Curtain specifications, include curtain width, application, location, color, motor voltage, heater kW, and variations.
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